MX2021003166A - Apparatus and method for inverse quantization. - Google Patents

Apparatus and method for inverse quantization.

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Publication number
MX2021003166A
MX2021003166A MX2021003166A MX2021003166A MX2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A
Authority
MX
Mexico
Prior art keywords
current block
chrominance component
inverse quantization
existing
values
Prior art date
Application number
MX2021003166A
Other languages
Spanish (es)
Inventor
Jianle Chen
Haitao Yang
Sergey Yurievich Ikonin
Yin Zhao
Timofey Mikhailovich Solovyev
Roman Chernyak
Alexander Karabutov
Original Assignee
Huawei Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2021003166A publication Critical patent/MX2021003166A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Abstract

A method for inverse quantization of a current block of a picture is provided. The method is performed by a decoder, and the picture comprises a luminance component and a chrominance component, the luminance component and the chrominance component are partitioned into multiple blocks. The method includes that obtaining one or more existing quantization parameter, QP values from a received bitstream, wherein the one or more existing QP values relate to a current block in the chrominance component; determining a QP value for the current block in the chrominance component based on the one or more existing QP values; performing inverse quantization on the current block in the chrominance component by using the determined QP value.
MX2021003166A 2018-09-21 2019-09-21 Apparatus and method for inverse quantization. MX2021003166A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862734982P 2018-09-21 2018-09-21
US201862744125P 2018-10-10 2018-10-10
US201862745983P 2018-10-15 2018-10-15
PCT/CN2019/107134 WO2020057662A1 (en) 2018-09-21 2019-09-21 Apparatus and method for inverse quantization

Publications (1)

Publication Number Publication Date
MX2021003166A true MX2021003166A (en) 2021-05-14

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MX2021003166A MX2021003166A (en) 2018-09-21 2019-09-21 Apparatus and method for inverse quantization.

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US (2) US11689723B2 (en)
EP (1) EP3841748A4 (en)
JP (2) JP7343573B2 (en)
KR (2) KR102578075B1 (en)
CN (3) CN112690000B (en)
AU (2) AU2019342803B2 (en)
BR (1) BR112021004984A2 (en)
CA (1) CA3111118A1 (en)
MX (1) MX2021003166A (en)
SG (1) SG11202101799WA (en)
WO (1) WO2020057662A1 (en)

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KR20230016047A (en) * 2020-05-27 2023-01-31 바이트댄스 아이엔씨 Use of subpictures and tiles in video coding
JP2023030585A (en) * 2021-08-23 2023-03-08 キヤノン株式会社 Image encoder, method and program
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AU2023248107A1 (en) 2023-11-09
EP3841748A1 (en) 2021-06-30
SG11202101799WA (en) 2021-03-30
JP2023164490A (en) 2023-11-10
CN114598875A (en) 2022-06-07
CN115052144A (en) 2022-09-13
KR20230135159A (en) 2023-09-22
JP2022500943A (en) 2022-01-04
AU2019342803B2 (en) 2023-07-13
US20230291902A1 (en) 2023-09-14
JP7343573B2 (en) 2023-09-12
KR20210045458A (en) 2021-04-26
CN112690000B (en) 2022-02-18
US20210218968A1 (en) 2021-07-15
KR102578075B1 (en) 2023-09-12
AU2019342803A1 (en) 2021-03-18
EP3841748A4 (en) 2021-10-27
CA3111118A1 (en) 2020-03-26
BR112021004984A2 (en) 2021-06-08
CN112690000A (en) 2021-04-20
WO2020057662A1 (en) 2020-03-26
CN114598875B (en) 2023-03-24
US11689723B2 (en) 2023-06-27

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